/gps/particle geantino
#circular plane source
/gps/pos/type Plane
/gps/pos/shape Circle
/gps/pos/centre 2. 1. 0. cm
/gps/pos/radius 3. cm
# cosine-law 
/gps/ang/type cos
# exponetial energy distri.
/gps/ene/type Exp
/gps/ene/min 2. MeV
/gps/ene/max 10. MeV
/gps/ene/ezero 2.

# commands below are independent of gps
#
/analysis/filename test4.aida
/analysis/maxeng 15 MeV
/analysis/mineng 1 MeV
/analysis/maxpos 5 cm 
/analysis/minpos -5 cm
/event/printModulo 10000
#/control/execute display.mac
/run/beamOn 10000